Although people in northwest Ohio and southeast Michigan are not required to have environmental checks on their cars, hundreds of drivers volunteer every year to have gas caps on their passenger vehicles tested for leaks.
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TMACOG and the City of Toledo Division of Environmental Services partner on the summer project which has been ongoing since 2000. The goal of the testing program is to share information and encourage actions that reduce auto emissions that can lead to smog. Testing and replacing leaking gas caps reduces the amount of pollution emitted into the atmosphere.

Local partners included Krogers, Barney’s, and Circle K gas stations. These partners volunteered the use of their property for a few hours of testing and invited drivers in with signs and posters. There were 22 testing events in Lucas and Wood counties and one in Lambertville, Michigan.

In 2013, 59 of 627 tested gas caps (9.4 percent) were replaced with new gas caps. Better fitting caps prevented approximately 11,741 pounds of pollution from entering the atmosphere. In general, the older the car, the more likely that the gas cap is leaking.